- parsePDF function restored in import.go (body was orphaned outside function) - ParseImportFile() called at upload time with 3-min timeout; chapters stored as JSON in MinIO - runner.go: prefer ChaptersKey path (read pre-parsed JSON) over BookImport.Import() - ImportChapterStore interface added; store wired in runner/main.go - HeartbeatTask and ReapStaleTasks now include import_tasks collection - parseImportTask now returns ChaptersKey in domain.ImportTask - asynq_runner.go handleImportTask passes ChaptersKey - pb-init-v3.sh: chapters_key field added to import_tasks schema